1   /**
2    * Copyright (c) 2000-2009 Liferay, Inc. All rights reserved.
3    *
4    *
5    *
6    *
7    * The contents of this file are subject to the terms of the Liferay Enterprise
8    * Subscription License ("License"). You may not use this file except in
9    * compliance with the License. You can obtain a copy of the License by
10   * contacting Liferay, Inc. See the License for the specific language governing
11   * permissions and limitations under the License, including but not limited to
12   * distribution rights of the Software.
13   *
14   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
20   * SOFTWARE.
21   */
22  
23  package com.liferay.portal.upgrade.util;
24  
25  import com.liferay.portal.kernel.util.FileUtil;
26  
27  import java.io.BufferedWriter;
28  import java.io.FileWriter;
29  
30  import java.util.Iterator;
31  
32  /**
33   * <a href="ValueMapperUtil.java.html"><b><i>View Source</i></b></a>
34   *
35   * @author Brian Wing Shun Chan
36   */
37  public class ValueMapperUtil {
38  
39      public static void persist(
40              ValueMapper valueMapper, String tmpDir, String fileName)
41          throws Exception {
42  
43          FileUtil.mkdirs(tmpDir);
44  
45          BufferedWriter bw = new BufferedWriter(
46              new FileWriter(tmpDir + "/" + fileName + ".txt"));
47  
48          try {
49              Iterator<Object> itr = valueMapper.iterator();
50  
51              while (itr.hasNext()) {
52                  Object oldValue = itr.next();
53  
54                  Object newValue = valueMapper.getNewValue(oldValue);
55  
56                  bw.write(oldValue + "=" + newValue);
57  
58                  if (itr.hasNext()) {
59                      bw.write("\n");
60                  }
61              }
62          }
63          finally {
64              bw.close();
65          }
66      }
67  
68  }